---
title: "R&K Mobile Services LLC (Ryan) — Clean Truck Check, Quincy, CA"
description: "R&K Mobile Services LLC (Ryan) in Quincy, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/r-and-k-mobile-services-llc-ryan-quincy/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# R&K Mobile Services LLC (Ryan)

Clean Truck Check tester in Quincy, CA (Plumas County).

> CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester.

| Field | Value |
|---|---|
| Location | 216 Claremont Dr, Quincy, CA 95971 |
| County | Plumas County |
| Phone | (530) 927-7651 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks R&K Mobile Services LLC (Ryan) can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Plumas Auto Diagnostics in Quincy, about 1 mile away. [See listing](https://ctcfinder.com/tester/plumas-auto-diagnostics-quincy/).

## Clean Truck Check testers in Plumas County

R&K Mobile Services LLC (Ryan) is one of 4 testing businesses in Plumas County on CARB's public tester list. 3 of them offer mobile testing and 2 do smoke opacity tests. In Quincy itself there are 3 listed businesses, 2 of them mobile.

## When your truck is due

Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does R&K Mobile Services LLC (Ryan) offer mobile Clean Truck Check testing?

Yes. R&K Mobile Services LLC (Ryan) says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.

### Can R&K Mobile Services LLC (Ryan) test a 2012 or older diesel truck?

R&K Mobile Services LLC (Ryan) does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Plumas Auto Diagnostics](https://ctcfinder.com/tester/plumas-auto-diagnostics-quincy/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does R&K Mobile Services LLC (Ryan) charge for a Clean Truck Check?

R&K Mobile Services LLC (Ryan) has not published prices with us; call (530) 927-7651 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/).

### Is R&K Mobile Services LLC (Ryan) a CARB-credentialed tester?

R&K Mobile Services LLC (Ryan) appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.

## Other testers nearby

- **[Franks Garage LLC](https://ctcfinder.com/tester/franks-garage-llc-quincy/)** — 270 Crescent St, Quincy, CA 95971 — (530) 283-9293 — 1 mi. Services: OBD testing, motorhome testing.
- **[Plumas Auto Diagnostics](https://ctcfinder.com/tester/plumas-auto-diagnostics-quincy/)** — 2140 E Main St, Quincy, CA 95971 — (530) 283-2868 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.